2007 E550 blinking AC light
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
2007 E550 blinking AC light
Did some searching prior to posting but most threads are geared toward older model w211's. None of the reset procedures I've read about appear to relate to this setup.
When I push the AC button, it blinks red 5 times and then goes out. No cold air at all.
I had my normal mechanic friend hook it up to his shops AC machine and found that it was fully charged.
Any ideas before I have to take it to the dealer?
When I push the AC button, it blinks red 5 times and then goes out. No cold air at all.
I had my normal mechanic friend hook it up to his shops AC machine and found that it was fully charged.
Any ideas before I have to take it to the dealer?
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From: V E G A S
1922 Ford Model T / no OBD
I can count about 15 things that affect AC on those cars, so dropping parts blindfolded can turn costly.
Have the car scanned, or buy 4-zone climatronic where you will be able to scan yourself using its LCD display.
Have the car scanned, or buy 4-zone climatronic where you will be able to scan yourself using its LCD display.
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
What do you mean by "buy 4-zone climatronic"? I did a quick google search but not seeing anything pertinent.
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1922 Ford Model T / no OBD
When they did it for cool factor, it allows reading car sensors with no need for additional scanner
Options that DIY like me, not having SD just love.
My climatronic is having different buttons, so it operates slightly different, but you'll get the idea.
Since you are in need for a scanner - you might like the idea as well.
Last edited by kajtek1; Apr 17, 2016 at 10:04 PM.
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
I do have a same or similar climate control to that in the video. I do not have the rest button, but find I can access the menu with the 1-99 data points by holding left side auto for 5 seconds. Not sure what if anything in this menu will perform a ac system reset and/or clear fault codes.
When looking up how to reset, I find that I need to hold defrost and recirc, but those two buttons share a rocker switch and cannot be depressed simultaneously.
Is there a method for either reading or reseting the system from the "secret" menu on the AC display?
When looking up how to reset, I find that I need to hold defrost and recirc, but those two buttons share a rocker switch and cannot be depressed simultaneously.
Is there a method for either reading or reseting the system from the "secret" menu on the AC display?
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1922 Ford Model T / no OBD
Post a picture what would help. Seems the climatronic come in several configurations.
Did you find errors?
Anyway, if you can access sensor readings, read 0 or 1-8 in 3 situations.
1. in the morning before engine start.
2. in the afternoon when entering hot car before engine start
3 couple minutes after #2 with engine running when AC should work at full blast.
Usually from those 3 readings I can troubleshoot the system with 98% accuracy.
Did you find errors?
Anyway, if you can access sensor readings, read 0 or 1-8 in 3 situations.
1. in the morning before engine start.
2. in the afternoon when entering hot car before engine start
3 couple minutes after #2 with engine running when AC should work at full blast.
Usually from those 3 readings I can troubleshoot the system with 98% accuracy.
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'71 Pinto
Definitive diagnose need to pull fault codes using MB SDS. One thing you can try since independent claims fully charged is to attempt a reset by disconnecting module, wait at least 5 minutes before reconnecting.
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
Thanks. I'm working on getting the data kajtek1 asked for and will give this a try as well.
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Thread Starter
Member
Joined: Jan 2016
Posts: 162
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
Post a picture what would help. Seems the climatronic come in several configurations.
Did you find errors?
Anyway, if you can access sensor readings, read 0 or 1-8 in 3 situations.
1. in the morning before engine start.
2. in the afternoon when entering hot car before engine start
3 couple minutes after #2 with engine running when AC should work at full blast.
Usually from those 3 readings I can troubleshoot the system with 98% accuracy.
Did you find errors?
Anyway, if you can access sensor readings, read 0 or 1-8 in 3 situations.
1. in the morning before engine start.
2. in the afternoon when entering hot car before engine start
3 couple minutes after #2 with engine running when AC should work at full blast.
Usually from those 3 readings I can troubleshoot the system with 98% accuracy.
Thread Starter
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Joined: Jan 2016
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
After looking this over, I'm guessing the data point "8" is the problem. Looks like that would be the refrigerant temp sensor either having gone bad or being unplugged. A parts search reveals some difference from the E500 to the E550. As of now, the only part I see for the E550, seems to be "A/C evap temperature sensor" (part # 2208300772). Not sure this is the correct part or not though.
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From: V E G A S
1922 Ford Model T / no OBD
rt is right about refrigerant sensor dead, so check the plug. I know older system has default mode for such occasion, so I hope your car does as well.
But main issue is low refrigerant.
4 bars is nothing to cool it. You need to have over 20 bars at full output.
I would add a can of R134 and recheck again. Most likely will take 2nd, but better be slow than sorry.
But main issue is low refrigerant.
4 bars is nothing to cool it. You need to have over 20 bars at full output.
I would add a can of R134 and recheck again. Most likely will take 2nd, but better be slow than sorry.
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1922 Ford Model T / no OBD
Also your engine sensor shows 16C with 30 outside, but I would not touch it before additional readout.
On 2nd tough, so many bad sensors is hard to believe.
Check all plugs and wiring for damage.
On 2nd tough, so many bad sensors is hard to believe.
Check all plugs and wiring for damage.
Last edited by kajtek1; Apr 18, 2016 at 07:01 PM.
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
Mercedes parts counter verified the pressure sensor is also the temp sensor for the AC. As the refrigerant temp is showing 99c, I decided to order a new sensor. I had my mechanic friend remove all the 134, changed the sensor and put a full charge in it (2.1lbs).
Since the AC won't come on, in order to get it to take a full charge, we had to provide power to the ac compressor using the blue with a green wire in the drive side underhood fuse box. AC works when providing power to that line as the compressor kicked right on, got a full charge and the AC line was ice cold.
When I turn the AC on in the car, I still get the 5 blinks and then it goes out. Refrigerant temp still reads as 99c as well.
Clearly something electrical is going on and not powering that blue/green wire when the AC switch is pressed. I guess I'm taking it to the dealer.
Since the AC won't come on, in order to get it to take a full charge, we had to provide power to the ac compressor using the blue with a green wire in the drive side underhood fuse box. AC works when providing power to that line as the compressor kicked right on, got a full charge and the AC line was ice cold.
When I turn the AC on in the car, I still get the 5 blinks and then it goes out. Refrigerant temp still reads as 99c as well.
Clearly something electrical is going on and not powering that blue/green wire when the AC switch is pressed. I guess I'm taking it to the dealer.
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1922 Ford Model T / no OBD
Taking spammer advice and spend big money is always an option, but automotive forums were crated to avoid such situations, so try 1 more thing.
W211 still have lot of hidden features and people like Plutoe don't want you to know that.
I can't guarantee success, but per my observations - even W211 having different buttons on climatronic, still have the same features.
So here is your chance to make it to forum history and prove Plutoe idiot.
Go to W210 site and try to follow the code reading logic with your buttons.
All you have to loose is few minutes. I would even try it on our W211 but wife just left in it and my climatronic is different from yours.
Good luck
http://www.mercedesmedic.com/ac-air-...le-codes-list/
W211 still have lot of hidden features and people like Plutoe don't want you to know that.
I can't guarantee success, but per my observations - even W211 having different buttons on climatronic, still have the same features.
So here is your chance to make it to forum history and prove Plutoe idiot.
Go to W210 site and try to follow the code reading logic with your buttons.
All you have to loose is few minutes. I would even try it on our W211 but wife just left in it and my climatronic is different from yours.
Good luck
http://www.mercedesmedic.com/ac-air-...le-codes-list/
Thread Starter
Member
Joined: Jan 2016
Posts: 162
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
Taking spammer advice and spend big money is always an option, but automotive forums were crated to avoid such situations, so try 1 more thing.
W211 still have lot of hidden features and people like Plutoe don't want you to know that.
I can't guarantee success, but per my observations - even W211 having different buttons on climatronic, still have the same features.
So here is your chance to make it to forum history and prove Plutoe idiot.
Go to W210 site and try to follow the code reading logic with your buttons.
All you have to loose is few minutes. I would even try it on our W211 but wife just left in it and my climatronic is different from yours.
Good luck
http://www.mercedesmedic.com/ac-air-...le-codes-list/
W211 still have lot of hidden features and people like Plutoe don't want you to know that.
I can't guarantee success, but per my observations - even W211 having different buttons on climatronic, still have the same features.
So here is your chance to make it to forum history and prove Plutoe idiot.
Go to W210 site and try to follow the code reading logic with your buttons.
All you have to loose is few minutes. I would even try it on our W211 but wife just left in it and my climatronic is different from yours.
Good luck
http://www.mercedesmedic.com/ac-air-...le-codes-list/
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From: V E G A S
1922 Ford Model T / no OBD
On my W211 climatronic "rest" and "AC" is same button. Hope that helps.
I should have some time tomorrow morning, so will try that on my end.
It is like reading criminal book and seeking the clues.
Or my wife spends long hours doing cross-puzzles.
The main difference is that we can actually "make" money doing this
I should have some time tomorrow morning, so will try that on my end.
It is like reading criminal book and seeking the clues.
Or my wife spends long hours doing cross-puzzles.
The main difference is that we can actually "make" money doing this
Last edited by kajtek1; Apr 23, 2016 at 12:09 AM.
Thread Starter
Member
Joined: Jan 2016
Posts: 162
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
On my W211 climatronic "rest" and "AC" is same button. Hope that helps.
I should have some time tomorrow morning, so will try that on my end.
It is like reading criminal book and seeking the clues.
Or my wife spends long hours doing cross-puzzles.
The main difference is that we can actually "make" money doing this
I should have some time tomorrow morning, so will try that on my end.
It is like reading criminal book and seeking the clues.
Or my wife spends long hours doing cross-puzzles.
The main difference is that we can actually "make" money doing this
http://www.benzworld.org/forums/w210...uble-code.html
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From: V E G A S
1922 Ford Model T / no OBD
I spend few minutes on our W211 and could not find way to access errors.
Net search did not find anybody posting errors readout on W211, but here is a guy speaking Arabic who does that on W220.
Can't understand what he is saying, but evidently he is reading and erasing AC codes, what makes me thinking that unless there is a good reason MBUSA disabled the option, we should get there sooner or later.
On edit, I emailed MBUSA with question, but it is weekend, so might take few days to get response.
Net search did not find anybody posting errors readout on W211, but here is a guy speaking Arabic who does that on W220.
On edit, I emailed MBUSA with question, but it is weekend, so might take few days to get response.
Last edited by kajtek1; Apr 23, 2016 at 11:29 AM.
Thread Starter
Member
Joined: Jan 2016
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
MBWorld Fanatic!
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1922 Ford Model T / no OBD
You've got it cheap brother. My local stealers start at $150.
Got the reply from MBUSA about hidden menu and they are firm that such information can be given only by dealer.
Maybe for $115 you can get that info as well?
Got the reply from MBUSA about hidden menu and they are firm that such information can be given only by dealer.
Maybe for $115 you can get that info as well?
Thread Starter
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Joined: Jan 2016
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
You've obviously got a problem with Kajtek1. I don't. He at least tried to provide some suggestion while you've only bashed him and provided no help in this thread. If you have anything constructive to say regarding the issue, please feel free, otherwise there's no need for you to reply.
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
I brought it to the dealer this week. Just got a call from them. They explained the pressure sensor was bad, and while there could be other issues, they would need to start with that at a cost of $727.
I just replaced the pressure sensor myself with an aftermarket part ($45) that made no difference so I suspect that either it isn't the problem, or there is another pressure sensor somewhere in the system. In either case, I'm not giving them $727 to replace it. So out $115 and back to the drawing board.
I just replaced the pressure sensor myself with an aftermarket part ($45) that made no difference so I suspect that either it isn't the problem, or there is another pressure sensor somewhere in the system. In either case, I'm not giving them $727 to replace it. So out $115 and back to the drawing board.
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1922 Ford Model T / no OBD
pressure sensor replacement require system evacuation. Did you refill it to proper pressure and confirm the sensor reading with actual gauge?
Did you ask the dealer about hidden menu reading?
Did you ask the dealer about hidden menu reading?
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From: Rochester NY
07 E550 4M - 11 Audi TT - 99 Expedition EB
We evacuated the system, replaced the pressure sensor and recharged to 2lbs. It made no difference in the operation of the AC or the readout on the climate control display. The whole job took less than 30 minutes so I'm not sure where they're coming up with $727.
The part from them is $191 so they're charging around $500 in labor from what I gather.
The dealer won't even give me the part number they want to replace so I didn't bother asking about any hidden menus. Highly frustrating.
The part from them is $191 so they're charging around $500 in labor from what I gather.
The dealer won't even give me the part number they want to replace so I didn't bother asking about any hidden menus. Highly frustrating.
